java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/hopv/lia/mochi/lock.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:34:25,333 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:34:25,335 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:34:25,352 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:34:25,353 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:34:25,354 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:34:25,354 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:34:25,358 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:34:25,360 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:34:25,360 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:34:25,363 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:34:25,363 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:34:25,364 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:34:25,365 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:34:25,365 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:34:25,368 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:34:25,370 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:34:25,372 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:34:25,374 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:34:25,374 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:34:25,376 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:34:25,378 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:34:25,378 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:34:25,378 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:34:25,379 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:34:25,380 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:34:25,381 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:34:25,381 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:34:25,383 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:34:25,383 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:34:25,383 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:34:25,384 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:34:25,384 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:34:25,385 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:34:25,386 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:34:25,386 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 11:34:25,400 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:34:25,401 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:34:25,401 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:34:25,401 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:34:25,402 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:34:25,402 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:34:25,403 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:34:25,403 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:34:25,403 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:34:25,403 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:34:25,403 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:34:25,404 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:34:25,404 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:34:25,404 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:34:25,404 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:34:25,404 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:34:25,404 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:34:25,405 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:34:25,405 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:34:25,406 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:34:25,406 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:34:25,461 INFO ]: Repository-Root is: /tmp [2018-06-22 11:34:25,476 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:34:25,480 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:34:25,482 INFO ]: Initializing SmtParser... [2018-06-22 11:34:25,482 INFO ]: SmtParser initialized [2018-06-22 11:34:25,483 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/lock.smt2 [2018-06-22 11:34:25,484 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 11:34:25,579 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/lock.smt2 unknown [2018-06-22 11:34:25,803 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/lock.smt2 [2018-06-22 11:34:25,808 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:34:25,813 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:34:25,814 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:34:25,814 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:34:25,814 INFO ]: ChcToBoogie initialized [2018-06-22 11:34:25,817 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:34:25" (1/1) ... [2018-06-22 11:34:25,865 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:34:25 Unit [2018-06-22 11:34:25,865 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:34:25,866 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:34:25,866 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:34:25,866 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:34:25,894 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:34:25" (1/1) ... [2018-06-22 11:34:25,894 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:34:25" (1/1) ... [2018-06-22 11:34:25,902 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:34:25" (1/1) ... [2018-06-22 11:34:25,902 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:34:25" (1/1) ... [2018-06-22 11:34:25,906 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:34:25" (1/1) ... [2018-06-22 11:34:25,908 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:34:25" (1/1) ... [2018-06-22 11:34:25,910 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:34:25" (1/1) ... [2018-06-22 11:34:25,912 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:34:25,913 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:34:25,913 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:34:25,913 INFO ]: RCFGBuilder initialized [2018-06-22 11:34:25,914 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:34:25" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 11:34:25,935 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:34:25,935 INFO ]: Found specification of procedure False [2018-06-22 11:34:25,935 INFO ]: Found implementation of procedure False [2018-06-22 11:34:25,935 INFO ]: Specification and implementation of procedure lockDLRunknownCLN7 given in one single declaration [2018-06-22 11:34:25,935 INFO ]: Found specification of procedure lockDLRunknownCLN7 [2018-06-22 11:34:25,935 INFO ]: Found implementation of procedure lockDLRunknownCLN7 [2018-06-22 11:34:25,935 INFO ]: Specification and implementation of procedure fDLRunknownCLN2 given in one single declaration [2018-06-22 11:34:25,935 INFO ]: Found specification of procedure fDLRunknownCLN2 [2018-06-22 11:34:25,935 INFO ]: Found implementation of procedure fDLRunknownCLN2 [2018-06-22 11:34:25,935 INFO ]: Specification and implementation of procedure gDLRunknownCLN6 given in one single declaration [2018-06-22 11:34:25,935 INFO ]: Found specification of procedure gDLRunknownCLN6 [2018-06-22 11:34:25,935 INFO ]: Found implementation of procedure gDLRunknownCLN6 [2018-06-22 11:34:25,935 INFO ]: Specification and implementation of procedure unlockDLRunknownCLN10 given in one single declaration [2018-06-22 11:34:25,936 INFO ]: Found specification of procedure unlockDLRunknownCLN10 [2018-06-22 11:34:25,936 INFO ]: Found implementation of procedure unlockDLRunknownCLN10 [2018-06-22 11:34:25,936 INFO ]: Specification and implementation of procedure gDLRunknownCLN5 given in one single declaration [2018-06-22 11:34:25,936 INFO ]: Found specification of procedure gDLRunknownCLN5 [2018-06-22 11:34:25,936 INFO ]: Found implementation of procedure gDLRunknownCLN5 [2018-06-22 11:34:25,936 INFO ]: Specification and implementation of procedure fDLRunknownCLN3 given in one single declaration [2018-06-22 11:34:25,936 INFO ]: Found specification of procedure fDLRunknownCLN3 [2018-06-22 11:34:25,936 INFO ]: Found implementation of procedure fDLRunknownCLN3 [2018-06-22 11:34:25,936 INFO ]: Specification and implementation of procedure lockDLRunknownCLN8 given in one single declaration [2018-06-22 11:34:25,936 INFO ]: Found specification of procedure lockDLRunknownCLN8 [2018-06-22 11:34:25,936 INFO ]: Found implementation of procedure lockDLRunknownCLN8 [2018-06-22 11:34:25,936 INFO ]: Specification and implementation of procedure unlockDLRunknownCLN9 given in one single declaration [2018-06-22 11:34:25,936 INFO ]: Found specification of procedure unlockDLRunknownCLN9 [2018-06-22 11:34:25,936 INFO ]: Found implementation of procedure unlockDLRunknownCLN9 [2018-06-22 11:34:25,936 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:34:25,936 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:34:25,936 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:34:26,396 INFO ]: Using library mode [2018-06-22 11:34:26,397 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:34:26 BoogieIcfgContainer [2018-06-22 11:34:26,397 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:34:26,399 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:34:26,399 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:34:26,402 INFO ]: TraceAbstraction initialized [2018-06-22 11:34:26,402 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:34:25" (1/3) ... [2018-06-22 11:34:26,403 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be516e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:34:26, skipping insertion in model container [2018-06-22 11:34:26,403 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:34:25" (2/3) ... [2018-06-22 11:34:26,403 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be516e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:34:26, skipping insertion in model container [2018-06-22 11:34:26,403 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:34:26" (3/3) ... [2018-06-22 11:34:26,405 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:34:26,413 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:34:26,420 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:34:26,458 INFO ]: Using default assertion order modulation [2018-06-22 11:34:26,458 INFO ]: Interprodecural is true [2018-06-22 11:34:26,458 INFO ]: Hoare is false [2018-06-22 11:34:26,458 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:34:26,458 INFO ]: Backedges is TWOTRACK [2018-06-22 11:34:26,458 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:34:26,458 INFO ]: Difference is false [2018-06-22 11:34:26,458 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:34:26,458 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:34:26,472 INFO ]: Start isEmpty. Operand 47 states. [2018-06-22 11:34:26,483 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:34:26,483 INFO ]: Found error trace [2018-06-22 11:34:26,484 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:34:26,485 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:34:26,488 INFO ]: Analyzing trace with hash 107725004, now seen corresponding path program 1 times [2018-06-22 11:34:26,490 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:34:26,490 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:34:26,521 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:26,521 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:34:26,521 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:26,534 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:34:26,559 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:34:26,560 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:34:26,561 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:34:26,562 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:34:26,573 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:34:26,573 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:34:26,575 INFO ]: Start difference. First operand 47 states. Second operand 2 states. [2018-06-22 11:34:26,599 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:34:26,599 INFO ]: Finished difference Result 45 states and 55 transitions. [2018-06-22 11:34:26,599 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:34:26,600 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:34:26,600 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:34:26,621 INFO ]: With dead ends: 45 [2018-06-22 11:34:26,621 INFO ]: Without dead ends: 45 [2018-06-22 11:34:26,627 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:34:26,640 INFO ]: Start minimizeSevpa. Operand 45 states. [2018-06-22 11:34:26,663 INFO ]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-06-22 11:34:26,664 INFO ]: Start removeUnreachable. Operand 45 states. [2018-06-22 11:34:26,666 INFO ]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2018-06-22 11:34:26,667 INFO ]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 5 [2018-06-22 11:34:26,667 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:34:26,667 INFO ]: Abstraction has 45 states and 55 transitions. [2018-06-22 11:34:26,667 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:34:26,667 INFO ]: Start isEmpty. Operand 45 states and 55 transitions. [2018-06-22 11:34:26,669 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:34:26,669 INFO ]: Found error trace [2018-06-22 11:34:26,669 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:34:26,670 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:34:26,670 INFO ]: Analyzing trace with hash 220433906, now seen corresponding path program 1 times [2018-06-22 11:34:26,670 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:34:26,670 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:34:26,670 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:26,670 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:34:26,670 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:26,689 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:34:26,842 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:34:26,842 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:34:26,842 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 11:34:26,844 INFO ]: Interpolant automaton has 5 states [2018-06-22 11:34:26,844 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 11:34:26,844 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:34:26,844 INFO ]: Start difference. First operand 45 states and 55 transitions. Second operand 5 states. [2018-06-22 11:34:26,990 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:34:26,990 INFO ]: Finished difference Result 45 states and 54 transitions. [2018-06-22 11:34:26,991 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:34:26,991 INFO ]: Start accepts. Automaton has 5 states. Word has length 13 [2018-06-22 11:34:26,992 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:34:26,993 INFO ]: With dead ends: 45 [2018-06-22 11:34:26,993 INFO ]: Without dead ends: 44 [2018-06-22 11:34:26,993 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:34:26,994 INFO ]: Start minimizeSevpa. Operand 44 states. [2018-06-22 11:34:27,005 INFO ]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-06-22 11:34:27,005 INFO ]: Start removeUnreachable. Operand 44 states. [2018-06-22 11:34:27,006 INFO ]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-06-22 11:34:27,006 INFO ]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 13 [2018-06-22 11:34:27,006 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:34:27,006 INFO ]: Abstraction has 44 states and 52 transitions. [2018-06-22 11:34:27,006 INFO ]: Interpolant automaton has 5 states. [2018-06-22 11:34:27,006 INFO ]: Start isEmpty. Operand 44 states and 52 transitions. [2018-06-22 11:34:27,010 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:34:27,010 INFO ]: Found error trace [2018-06-22 11:34:27,011 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:34:27,011 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:34:27,011 INFO ]: Analyzing trace with hash -1504442324, now seen corresponding path program 1 times [2018-06-22 11:34:27,011 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:34:27,011 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:34:27,012 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:27,012 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:34:27,012 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:27,022 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:34:27,077 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:34:27,077 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:34:27,077 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 11:34:27,077 INFO ]: Interpolant automaton has 5 states [2018-06-22 11:34:27,077 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 11:34:27,077 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:34:27,078 INFO ]: Start difference. First operand 44 states and 52 transitions. Second operand 5 states. [2018-06-22 11:34:27,305 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:34:27,305 INFO ]: Finished difference Result 48 states and 58 transitions. [2018-06-22 11:34:27,306 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:34:27,306 INFO ]: Start accepts. Automaton has 5 states. Word has length 21 [2018-06-22 11:34:27,306 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:34:27,307 INFO ]: With dead ends: 48 [2018-06-22 11:34:27,307 INFO ]: Without dead ends: 48 [2018-06-22 11:34:27,307 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:34:27,307 INFO ]: Start minimizeSevpa. Operand 48 states. [2018-06-22 11:34:27,318 INFO ]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-06-22 11:34:27,318 INFO ]: Start removeUnreachable. Operand 48 states. [2018-06-22 11:34:27,319 INFO ]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2018-06-22 11:34:27,319 INFO ]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 21 [2018-06-22 11:34:27,319 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:34:27,319 INFO ]: Abstraction has 48 states and 58 transitions. [2018-06-22 11:34:27,319 INFO ]: Interpolant automaton has 5 states. [2018-06-22 11:34:27,319 INFO ]: Start isEmpty. Operand 48 states and 58 transitions. [2018-06-22 11:34:27,321 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-22 11:34:27,321 INFO ]: Found error trace [2018-06-22 11:34:27,321 INFO ]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:34:27,321 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:34:27,321 INFO ]: Analyzing trace with hash 524820759, now seen corresponding path program 1 times [2018-06-22 11:34:27,321 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:34:27,321 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:34:27,322 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:27,322 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:34:27,322 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:27,338 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:34:27,560 WARN ]: Spent 134.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 4 [2018-06-22 11:34:27,859 WARN ]: Spent 124.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-06-22 11:34:27,869 INFO ]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 11:34:27,869 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:34:27,869 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:34:27,882 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:34:27,900 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:34:27,907 INFO ]: Computing forward predicates... [2018-06-22 11:34:28,070 INFO ]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 11:34:28,091 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:34:28,091 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 11 [2018-06-22 11:34:28,091 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:34:28,091 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:34:28,091 INFO ]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:34:28,092 INFO ]: Start difference. First operand 48 states and 58 transitions. Second operand 11 states. [2018-06-22 11:34:28,258 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:34:28,258 INFO ]: Finished difference Result 55 states and 66 transitions. [2018-06-22 11:34:28,259 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 11:34:28,259 INFO ]: Start accepts. Automaton has 11 states. Word has length 29 [2018-06-22 11:34:28,259 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:34:28,260 INFO ]: With dead ends: 55 [2018-06-22 11:34:28,260 INFO ]: Without dead ends: 55 [2018-06-22 11:34:28,261 INFO ]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:34:28,261 INFO ]: Start minimizeSevpa. Operand 55 states. [2018-06-22 11:34:28,275 INFO ]: Finished minimizeSevpa. Reduced states from 55 to 51. [2018-06-22 11:34:28,276 INFO ]: Start removeUnreachable. Operand 51 states. [2018-06-22 11:34:28,279 INFO ]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2018-06-22 11:34:28,279 INFO ]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 29 [2018-06-22 11:34:28,280 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:34:28,280 INFO ]: Abstraction has 51 states and 62 transitions. [2018-06-22 11:34:28,280 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:34:28,280 INFO ]: Start isEmpty. Operand 51 states and 62 transitions. [2018-06-22 11:34:28,281 INFO ]: Finished isEmpty. Found accepting run of length 42 [2018-06-22 11:34:28,281 INFO ]: Found error trace [2018-06-22 11:34:28,281 INFO ]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:34:28,281 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:34:28,282 INFO ]: Analyzing trace with hash -468631626, now seen corresponding path program 1 times [2018-06-22 11:34:28,282 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:34:28,282 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:34:28,282 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:28,282 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:34:28,282 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:28,313 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:34:28,704 INFO ]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 11:34:28,704 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:34:28,704 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:34:28,719 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:34:28,746 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:34:28,749 INFO ]: Computing forward predicates... [2018-06-22 11:34:28,863 INFO ]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 11:34:28,885 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:34:28,886 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2018-06-22 11:34:28,886 INFO ]: Interpolant automaton has 13 states [2018-06-22 11:34:28,886 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 11:34:28,886 INFO ]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-06-22 11:34:28,886 INFO ]: Start difference. First operand 51 states and 62 transitions. Second operand 13 states. [2018-06-22 11:34:29,420 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:34:29,420 INFO ]: Finished difference Result 58 states and 68 transitions. [2018-06-22 11:34:29,421 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 11:34:29,421 INFO ]: Start accepts. Automaton has 13 states. Word has length 41 [2018-06-22 11:34:29,421 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:34:29,422 INFO ]: With dead ends: 58 [2018-06-22 11:34:29,422 INFO ]: Without dead ends: 53 [2018-06-22 11:34:29,423 INFO ]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2018-06-22 11:34:29,423 INFO ]: Start minimizeSevpa. Operand 53 states. [2018-06-22 11:34:29,432 INFO ]: Finished minimizeSevpa. Reduced states from 53 to 51. [2018-06-22 11:34:29,432 INFO ]: Start removeUnreachable. Operand 51 states. [2018-06-22 11:34:29,433 INFO ]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2018-06-22 11:34:29,433 INFO ]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 41 [2018-06-22 11:34:29,434 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:34:29,434 INFO ]: Abstraction has 51 states and 60 transitions. [2018-06-22 11:34:29,434 INFO ]: Interpolant automaton has 13 states. [2018-06-22 11:34:29,434 INFO ]: Start isEmpty. Operand 51 states and 60 transitions. [2018-06-22 11:34:29,435 INFO ]: Finished isEmpty. Found accepting run of length 34 [2018-06-22 11:34:29,435 INFO ]: Found error trace [2018-06-22 11:34:29,435 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:34:29,435 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:34:29,435 INFO ]: Analyzing trace with hash 803082187, now seen corresponding path program 1 times [2018-06-22 11:34:29,435 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:34:29,435 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:34:29,436 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:29,436 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:34:29,436 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:29,454 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:34:29,575 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:34:29,575 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:34:29,575 INFO ]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-06-22 11:34:29,575 INFO ]: Interpolant automaton has 8 states [2018-06-22 11:34:29,575 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 11:34:29,575 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:34:29,576 INFO ]: Start difference. First operand 51 states and 60 transitions. Second operand 8 states. [2018-06-22 11:34:29,720 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:34:29,721 INFO ]: Finished difference Result 51 states and 59 transitions. [2018-06-22 11:34:29,721 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 11:34:29,721 INFO ]: Start accepts. Automaton has 8 states. Word has length 33 [2018-06-22 11:34:29,721 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:34:29,722 INFO ]: With dead ends: 51 [2018-06-22 11:34:29,722 INFO ]: Without dead ends: 50 [2018-06-22 11:34:29,722 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-06-22 11:34:29,722 INFO ]: Start minimizeSevpa. Operand 50 states. [2018-06-22 11:34:29,731 INFO ]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-06-22 11:34:29,731 INFO ]: Start removeUnreachable. Operand 50 states. [2018-06-22 11:34:29,732 INFO ]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2018-06-22 11:34:29,732 INFO ]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 33 [2018-06-22 11:34:29,732 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:34:29,732 INFO ]: Abstraction has 50 states and 57 transitions. [2018-06-22 11:34:29,732 INFO ]: Interpolant automaton has 8 states. [2018-06-22 11:34:29,732 INFO ]: Start isEmpty. Operand 50 states and 57 transitions. [2018-06-22 11:34:29,735 INFO ]: Finished isEmpty. Found accepting run of length 86 [2018-06-22 11:34:29,735 INFO ]: Found error trace [2018-06-22 11:34:29,735 INFO ]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:34:29,735 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:34:29,735 INFO ]: Analyzing trace with hash 1762517153, now seen corresponding path program 1 times [2018-06-22 11:34:29,735 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:34:29,735 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:34:29,736 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:29,736 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:34:29,736 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:34:29,760 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:34:29,851 INFO ]: Checked inductivity of 88 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-06-22 11:34:29,851 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:34:29,851 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 11:34:29,852 INFO ]: Interpolant automaton has 6 states [2018-06-22 11:34:29,852 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 11:34:29,852 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:34:29,852 INFO ]: Start difference. First operand 50 states and 57 transitions. Second operand 6 states. [2018-06-22 11:34:29,882 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:34:29,882 INFO ]: Finished difference Result 46 states and 51 transitions. [2018-06-22 11:34:29,882 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:34:29,882 INFO ]: Start accepts. Automaton has 6 states. Word has length 85 [2018-06-22 11:34:29,883 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:34:29,883 INFO ]: With dead ends: 46 [2018-06-22 11:34:29,883 INFO ]: Without dead ends: 0 [2018-06-22 11:34:29,883 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:34:29,883 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:34:29,883 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:34:29,883 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:34:29,883 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:34:29,883 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2018-06-22 11:34:29,883 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:34:29,883 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:34:29,883 INFO ]: Interpolant automaton has 6 states. [2018-06-22 11:34:29,883 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:34:29,883 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:34:29,887 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:34:29 BoogieIcfgContainer [2018-06-22 11:34:29,887 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:34:29,888 INFO ]: Toolchain (without parser) took 4079.36 ms. Allocated memory was 309.3 MB in the beginning and 326.6 MB in the end (delta: 17.3 MB). Free memory was 264.7 MB in the beginning and 183.2 MB in the end (delta: 81.5 MB). Peak memory consumption was 98.8 MB. Max. memory is 3.6 GB. [2018-06-22 11:34:29,889 INFO ]: SmtParser took 0.25 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:34:29,890 INFO ]: ChcToBoogie took 51.97 ms. Allocated memory is still 309.3 MB. Free memory was 263.7 MB in the beginning and 261.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:34:29,890 INFO ]: Boogie Preprocessor took 46.15 ms. Allocated memory is still 309.3 MB. Free memory was 261.7 MB in the beginning and 260.7 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 11:34:29,891 INFO ]: RCFGBuilder took 484.56 ms. Allocated memory is still 309.3 MB. Free memory was 260.7 MB in the beginning and 249.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:34:29,891 INFO ]: TraceAbstraction took 3488.75 ms. Allocated memory was 309.3 MB in the beginning and 326.6 MB in the end (delta: 17.3 MB). Free memory was 249.7 MB in the beginning and 183.2 MB in the end (delta: 66.5 MB). Peak memory consumption was 83.8 MB. Max. memory is 3.6 GB. [2018-06-22 11:34:29,894 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.25 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 51.97 ms. Allocated memory is still 309.3 MB. Free memory was 263.7 MB in the beginning and 261.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 46.15 ms. Allocated memory is still 309.3 MB. Free memory was 261.7 MB in the beginning and 260.7 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 484.56 ms. Allocated memory is still 309.3 MB. Free memory was 260.7 MB in the beginning and 249.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3488.75 ms. Allocated memory was 309.3 MB in the beginning and 326.6 MB in the end (delta: 17.3 MB). Free memory was 249.7 MB in the beginning and 183.2 MB in the end (delta: 66.5 MB). Peak memory consumption was 83.8 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 47 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 351 SDtfs, 12 SDslu, 1440 SDs, 0 SdLazy, 255 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 25112 SizeOfPredicates, 7 NumberOfNonLiveVariables, 207 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 117/129 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lock.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-34-29-905.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lock.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-34-29-905.csv Received shutdown request...